Search for dissertations about: "polycrystal"
Showing result 1 - 5 of 8 swedish dissertations containing the word polycrystal.
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1. Phase change with stress effects and flow
Abstract : In this thesis two kinds of phase change i.e., solid state phase transformation in steels and solid-to-liquid phase transformation in paraffin, have been modeled and numerically simulated. READ MORE
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2. Computational modeling of oxygen-assisted fracture in nickel-based superalloys
Abstract : Nickel-based superalloys are a commonly used material in applications where high strength is required at high temperatures. A typical such example is jet engines and, in the case of polycrystalline nickel-based superalloys, components like turbine disks. READ MORE
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3. On the Chemical Romance Between Gas and Surface, and how to Illuminate it
Abstract : An increasing number of catalysis experiments are conducted at higher pressures to bridge the pressure gap. This means that we need to measure not only the sample surface but also the gas phase around the sample with spatial resolution. READ MORE
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4. Efficient crystal plasticity simulations of microstructure evolution
Abstract : One of the common tools for studying the deformation behavior of the microstructure in polycrystalline materials is crystal plasticity models. These are used to describe texture evolution and hardening due to crystallographic slip. READ MORE
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5. Computational modeling of polycrystals using gradient crystal plasticity
Abstract : This thesis treats the modeling of grain size dependence inmicrostructure models of metals. It is shown how gradient hardening, in a thermodynamically consistent fashion, can be included into a crystal plasticity model, which is used as the constitutive model in each grain of the polycrystal. READ MORE